Efficiency equation for energy transfers (8.15) | Edexcel GCSE Combined Science (1SC0) — Physics — Foundation | KnowledgeSet

Efficiency equation for energy transfers

Physics (Combined Science) · GCSE · Edexcel · Edexcel GCSE Combined Science (1SC0) — Physics — Foundation · Specification point · 8.15 · Energy – forces doing work

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Learning Objectives

Students should:	Maths skills
$\text{efficiency}=\frac{\text{(useful energy transferred by the device)}}{\text{(total energy supplied to the device)}}$